Distance Conversions for Runners and Cyclists: Miles, Kilometers, and Pace

Distance Conversion Basics

For runners and cyclists, knowing how to convert between miles and kilometers is essential.

Quick Conversion

Miles to Kilometers: multiply by 1.609 Kilometers to Miles: multiply by 0.621

Common Race Distances

Running Races

Race	Miles	Kilometers
5K	3.11	5
10K	6.21	10
Half Marathon	13.11	21.1
Marathon	26.22	42.2
50K Ultra	31.07	50
100K Ultra	62.14	100

Cycling Distances

Ride Type	Miles	Kilometers
Short ride	10-20	16-32
Medium ride	25-40	40-64
Century	100	161
Metric Century	62	100

Triathlon Distances

Event	Swim	Bike	Run
Sprint	750m	20km	5km
Olympic	1.5km	40km	10km
Half Ironman	1.9km	90km	21.1km
Ironman	3.8km	180km	42.2km

Pace Conversions

Minutes per Mile to Minutes per Kilometer

To convert min/mile to min/km: divide by 1.609

Example: 8:00 min/mile pace = 4:58 min/km

Pace Conversion Table

Min/Mile	Min/KM	Speed (mph)	Speed (km/h)
6:00	3:44	10.0	16.1
7:00	4:21	8.6	13.8
8:00	4:58	7.5	12.1
9:00	5:36	6.7	10.7
10:00	6:13	6.0	9.7

Speed Conversions

Speed (mph) = 60 / pace (min/mile) Speed (km/h) = 60 / pace (min/km)

Race Time Calculations

Time = Distance × Pace

Example: 10K at 5:30 min/km = 55 minutes

Treadmill Conversions

Treadmill Speed Settings

MPH	Min/Mile	KM/H	Min/KM
6.0	10:00	9.7	6:12
7.0	8:34	11.3	5:19
8.0	7:30	12.9	4:39
9.0	6:40	14.5	4:08
10.0	6:00	16.1	3:44

Incline Equivalents

1% incline ≈ simulates outdoor running

Quick Reference Card

DISTANCES:

• 5K = 3.1 miles
• 10K = 6.2 miles
• Half = 13.1 miles
• Full = 26.2 miles

PACE:

• 6:00/mi = 3:44/km
• 8:00/mi = 4:58/km
• 10:00/mi = 6:13/km

SPEED:

• 10 mph = 16.1 km/h
• 15 mph = 24.1 km/h
• 20 mph = 32.2 km/h

Conclusion

Whether you train in miles or kilometers, understanding both systems helps you follow any training plan and race anywhere in the world.

Use our free Unit Converter for quick distance and pace calculations.